8jmw

Fibril form of serine peptidase Vpr

spinqualitylabelsall models 8jmw, resolution 2.90Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 8jmw is a 18 chain structure with sequence from Bacillus amyloliquefaciens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: Electron Microscopy, Resolution 2.9Å Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function A0A6A8LCF5_9BACI Publication Abstract from PubMed Bacteria develop a variety of extracellular fibrous structures crucial for their survival, such as flagella and pili. In this study, we use cryo-EM to identify protein fibrils surrounding lab-cultured Bacillus amyloiquefaciens and discover an unreported fibril species in addition to the flagellar fibrils. These previously unknown fibrils are composed of Vpr, an extracellular serine peptidase. We find that Vpr assembles into fibrils in an enzymatically active form, potentially representing a strategy of enriching Vpr activities around bacterial cells. Vpr fibrils are also observed under other culture conditions and around other Bacillus bacteria, such as Bacillus subtilis, which may suggest a general mechanism across all Bacillus bacterial groups. Taken together, our study reveals fibrils outside the bacterial cell and sheds light on the physiological role of these extracellular fibrils. Serine peptidase Vpr forms enzymatically active fibrils outside Bacillus bacteria revealed by cryo-EM.,Cheng Y, Han J, Song M, Zhang S, Cao Q Nat Commun. 2023 Nov 18;14(1):7503. doi: 10.1038/s41467-023-43359-z. PMID:37980359 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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